Superficially, Dial M for Murder (1954) looks unambitious, a simple stage-to-set recreation of Frederick Knott’s hit play. Even Hitchcock, perhaps disingenuously, described it as a phoned-in effort knocked off between the location shooting of I, Confess and the elaborate staging of Rear Window. But the tightly-staged thriller bristles with symbols of objectification and possession, reducing Margot Wendice to a property passed from hand to hand, from man to man, as readily as the key around…